rate of change in velocity, usually expressed in meters per
second; involves an increase or decrease in speed and/or a
change in direction
What is acceleration?
100
the smallest unit of a chemical element that can still retain
the properties of that element
What is an atom?
100
the process of changing from a gas (i.e., water vapor) to a
liquid (i.e., dew); the act of making more dense or compact
What is condensation?
100
a physical change that occurs when matter changes to
another state (i.e., liquid, gas, or solid)
What is change of state?
100
a procedure that is carried out and repeated under
controlled conditions in order to discover, demonstrate, or
test a hypothesis; includes all components of the scientific
method
What is an experiment?
200
a quality that tends to produce movement or acceleration of
a body in the direction of its application; a push or a pull
What is force?
200
a stable elementary particle that is negatively charged and
orbits the nucleus of an atom
What is an electron?
200
the process of changing from a gas (i.e., water vapor) to a
liquid (i.e., dew); the act of making more dense or compact
What is convection?
200
a reaction or a change in a substance produced by
chemical means that results in producing a different
chemical
What is a chemical change?
200
a procedure that is carried out in order to observe a
response caused by a stimulus; not a complete experiment
What is an investigation?
300
a force that opposes the relative motion of two material
surfaces in contact with one another
What is friction?
300
a substance that cannot be reduced to a simpler substance
by chemical means
What is an element?
300
a quantity that describes the capacity to do work; a source
of usable power
What is energy?
300
one of the fundamental states of matter in which molecules
do not have fixed volume or shape
What is gas?
300
a plan of inquiry that uses science process skills as a tool to
gather, organize, analyze, and communicate information
What is the scientific method?
400
the property of an object, due to its mass, that causes it to
resist any change in its motion unless overcome by a force
What is inertia?
400
a particle, object, or system that lacks a net charge
What is a neutral?
400
the process in which a liquid is converted to its vapor
phase by heating the liquid
What is evaporation?
400
the product of a thorough blending of two or more
substances, not chemically combined
What is a mixture?
400
a set of objects, organisms, or different parts acting to form
a whole
What is a system?
500
amount of distance traveled divided by time taken; the
time-rate at which any physical process takes place
What is speed?
500
a subatomic particle having a positive charge and which is
found in the nucleus of an atom
What is a proton?
500
energy stored in an object due to the object’s configuration
and position
What is potential energy?
500
the bouncing off or turning back of light, sound, or heat
from a surface
What is reflection?
500
the event, condition, or factor that can be changed or
controlled in order to study or test a hypothesis in a
scientific experiment